Consciousness, chetna, prana, energy, these terms are understood one and same. These words can be seen to be used in erroneous manner in different perspectives. This is the fact that where science fails, the philosophies prevail. Consciousness is very difficult to understand and study scientifically. The psychologist’s and philosophers try to explain it. This paper attempts to understand consciousness according to different aspects, the Indian, the Western, and the psycological.